CVE-2026-124761: RT-Labs P-Net · Incorrect Behavior Order
Affects RT-Labs P-NetSource CVE Database V5
Not known to be exploited · CVSS 7.1 High : upgrade to 1.0.4 soon.
Data as of 13 Nov 2026, 13:38 UTC
Thin evidence
One scorer or none| CNA (rt-labs) | CVSS 4.0 | 7.1 |
|---|
- Patch
- Available – fixed in 1.0.4
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade RT-Labs P-Net to 1.0.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| RT-LabsP-Net | Affected
| Fixed in
|
AI-suggested
A fix is available in RT-Labs P-Net version 1.0.4. Users should upgrade to version 1.0.4 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Description
CVE-2026-124761 is a vulnerability in RT-Labs P-Net versions before 1.0.4 where the device improperly saves a refused IP address configuration. When a DCP Set request is refused due to an active Application Relationship, the device still saves the refused IP address and uses it after restart, potentially causing communication issues with the controller. This can be exploited by a host with adjacent network access while the Application Relationship is active.